Mike, great answers, thx, looking into them now. On Wednesday, 15 February 2017 14:15:55 UTC, Mike Bryant wrote: > On 15 February 2017 at 14:02, <dan.gard...@baddogdown.com> wrote: > > > > > REJECTED OPTIONS: > > 1.b) A Scheduled job to update the squid.conf in a configMap with the IPs > > for all the Pods. No, a deployment wont pick up a changed configMap > > without the pods being recreated / cycled, meaning new IPs and alas the > > config is no longer valid. > > Pods do actually get the file updated when a configmap is changed - > but normally daemons don't reload it. The prometheus-operator (where I > first saw this technique), uses a container that triggers an reload of > the daemon when a change is noticed: > https://github.com/jimmidyson/configmap-reload > (I'm not sure how relevant this is to Squid, if you can trigger a > config reload by hitting a http endpoint) > > > > > OPTIONS CURRENTLY BEING CONSIDERED: > > 1.g) Can I predictably name pods & DNS resolve them ? e.g. > > appX-pod01.{namespace}.cluster.local ? Therefore hardcode all potential > > pods by name in the squid.conf > > Yes, a StatefulSet gives predictable network identity for pods: > https://kubernetes.io/docs/concepts/abstractions/controllers/statefulsets/#pod-identity > > > There's also an option mentioned here: > https://stackoverflow.com/questions/37317003/restart-pods-when-configmap-updates-in-kubernetes > where you use liveness checks to make Kubernetes restart your pod if > the configmap changes. > > > Hope that's helpful > > Cheers > Mike > > -- > Mike Bryant | Network Systems Team Leader | Ocado Technology > mike.bry...@ocado.com | 07825 226780 | www.ocadotechnology.com > > -- > > > Notice: This email is confidential and may contain copyright material of > members of the Ocado Group. Opinions and views expressed in this message > may not necessarily reflect the opinions and views of the members of the > Ocado Group. > > > > If you are not the intended recipient, please notify us immediately and > delete all copies of this message. Please note that it is your > responsibility to scan this message for viruses. > > > > Fetch and Sizzle are trading names of Speciality Stores Limited and Fabled > is a trading name of Marie Claire Beauty Limited, both members of the Ocado > Group. > > > > References to the “Ocado Group” are to Ocado Group plc (registered in > England and Wales with number 7098618) and its subsidiary undertakings (as > that expression is defined in the Companies Act 2006) from time to time. > The registered office of Ocado Group plc is Titan Court, 3 Bishops Square, > Hatfield Business Park, Hatfield, Herts. AL10 9NE.
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